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Featured

  • Natural Convection in a Vertical Channel

    Most high-powered electronic devices are cooled by forced convection airflow, but occasionally there is a need for natural convection cooling. Determining factors, which include cost, noise, vibration and reliability, can eliminate use of a fan or blower; particularly in consumer electronics and outdoor enclosures. Fan failure will also change the flow regime from forced flow to natural... details>>
  • Improving the Performance of Microchannel Heat Sinks

    The increasing power density of electronic devices has pushed traditional air cooling technology to its performance limit. With air as a working fluid, it is increasingly difficult to design cost-effective heat sinks that can dissipate over 100 W/cm2 heat flux at the device level. Liquid cooled heat sinks have emerged as the accepted substitute for air cooled heat sinks because of their better... details>>
  • Simple Refrigeration System for Thermal Management

    Simple refrigeration systems are widely used in commercial refrigerators and household air conditioners. They were introduced to personal computers by KryoTech for AMDs Athlon processor and to servers by IBM for its S/390 G4 Mainframe in 1990s. Unlike traditional air-cooled heat sinks and liquid-cooled cold plates, refrigeration cooling utilizes the phase change of refrigerant to reduce the... details>>
  • Phase Change Materials and Transient Loads

    In the Thermal Management field, phase change materials have been studied for many years, and they have been put to many uses. They have been used as thermal interface materials, where their phase change characteristics allow them to "wet" a surface when they warm up, conforming to imperfect mating surfaces. This gives them excellent performance as a TIM, even though the material itself has... details>>
  • Lithium Ion Battery Overheating Seen in Boeing 787: Why and Solutions

    An investigation into a Boeing 787 Dreamliner\'s emergency landing in Japan was found to be from the lithium Ion battery overheating. What are the characteristics of that battery type that would make it a thermal challenge and what are some strategies to solve them? details>>
  • Thermochromic liquid crystals vs. IR Cameras: Which Should an Engineer Use?

    Recently here at coolingZONE we reported on Advanced Thermal Solutions new TLC-100 Liquid Crystal Thermography kit. The kit makes it easy to apply liquid crystals that are designed for heat transfer studies and mapping heat fields on electronic components or boards. But recently, there has been a debate about using the crystals or using an IR camera, or both. details>>
  • Using Your Lungs as a model, GE Creates New Air Mover Method That Cools Electronics at the Source

    Taking their cue from nature and human lungs, GE research creates a new kind of air mover so thin, it allows the cooling of electronics at the source. The GE invention is the dual piezoelectric cooling jet. It contains no rotating parts, does not rely on a DC motor, and consumes an average 50% less energy than modern fan-powered cooling units. details>>
  • $595 in Training Could be Yours for Taking our 5-minute survey

    When you fill out our 5-Minute Survey you\'ll be automatically entered into a drawing to win $595 in thermal management training. The training is over 10-hours of on-demand videos covering liquid cooling, thermal measurement and military and avionics thermal management, LED cooling, and more! details>>
  • Miniaturization and High Capacity Cooling on the Minds of Thermal Management Industry

    Miniaturization seems to be on the minds of many researchers when it comes to thermal management. From miniature compressors out of Purdue to IBM\\\'s new miniature water cooling system, there is a consistent, demanding need to follow the cooling down the size scale. We cover two such technologies in our article and suggest resources for others. details>>
  • coolingZONE November 28th eConference: When is computer aided engineering more than just pretty pictures?

    The second month of eConferences for Q4 2012 will be held November 28th from 11AM-2PM. Our three speakers include Dr. Andrew Duggleby speaking on, "When is computer aided engineering more than just pretty pictures?"; Jim VanGilder speaking on "Fast 3D Data Center Cooling Analysis" and Dr. Kaveh Azar speaking on, "Thermal Design and Characterization of Flat Miniature Heat Pipes". details>>
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